Overview of Primary Product

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DOCUMENT #: REVISION:
BF-950 5/07
Model 950
Double Check Valve Assembly
SPECIFICATION SUBMITTAL SHEET
FEATURES
Sizes: 2½" 3" 4" 6" 8" 10"
Maximum working water pressure 175 PSI
Maximum working water temperature 140°F
Hydrostatic test pressure 350 PSI
End connections Flanged ANSI B16.1
Class 125
OPTIONS
DIMENSIONS & WEIGHTS (do not include pkg.)
B
A
E
F
D C
G
MATERIALS
Main valve body Cast Iron ASTM A126 Class B
Access covers Cast Iron ASTM A126 Class B
Coatings FDA Approved Epoxy finish
Internals Stainless Steel, 300 Series
Cast Bronze ASTM B 584
Elastomers EPDM (FDA approved)
Buna Nitrile (FDA approved)
Polymers Delrin™, NSF Listed
Springs Stainless steel, 300 series
STANDARDS COMPLIANCE
APPLICATION
Designed for installation on potable water lines to protect
against both backsiphonage and backpressure of polluted
water into the potable water supply. Assembly shall provide
protection where a potential health hazard does not exist.
(Suffixes can be combined)
 - with NRS gates valves (standard)
 G - with groove end NRS gate valves
 L - less shut-off valves
 OSY - with OS & Y gate valves
 OSYG - with groove end OS & Y gate valves
 FS - with cast iron "Y" type flanged strainer
 FSC - with cast iron "Y" type flanged strainer
fusion epoxy coated
 Repair kit (rubber only)
 Thermal expansion tank (Model WXTP)
ACCESSORIES
 ASSE® Listed 1015 (Horizontal and Vertical Flow Up)
 CSA® Certified (Horizontal and Vertical Flow-Up)
 IAPMO® Listed (Horizontal)
 AWWA Compliant C510 (Horizontal)
 UL® Classified (Horizontal)
 C-UL® Classified (Horizontal)
 FM® Approved (Horizontal)
 Approved by the Foundation for Cross Connection
Control and Hydraulic Research at the University of
Southern California (Horizontal (all sizes) and Verti-
cal flow up ( 8") installations)
in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm lbs. k
g
lbs. k
g
lbs. k
g
2 1/2 65 37 1/8 943 22 559 4 102 8 203 16 3/8 416 13 7/8 352 11 3/8 289 8 3/8 213 47 1194 81 36.8 183 83.1 191 86.7
3 80 38 1/8 968 22 559 4 102 8 203 18 7/8 479 15 5/8 397 12 3/8 314 9 1/4 235 48 3/4 1238 81 36.8 205 93.1 211 95.8
4 100 50 1/4 1276 32 1/8 816 5 127 8 203 22 3/4 578 18 1/4 464 14 3/4 375 12 1/2 318 65 1/4 1657 222 100.8 402 182.5 412 187
6 150 62 1/8 1578 41 1041 6 152 10 254 29 1/4 765 23 3/4 603 19 483 14 356 80 2032 516 234 800 363.2 816 370
8 200 71 1/8 1807 48 1219 7 1/2 191 11 279 37 3/4 959 29 1/4 743 22 1/2 572 17 3/4 451 95 1/4 2419 827 375.5 1279 581 1303 591.6
10 250 84 1/8 2137 58 1473 9 229 12 305 45 3/4 1162 35 3/8 899 26 1/2 673 21 1/4 540 113 2889 1390 631 2150 976.1 2208 1002
WITH
OS&Y
GATE
VALVES
WEIGHT
FG
WITHOUT
GATE
VALVES
WITH NRS
GATE
VALVES
MODEL
SIZE
DIMENSIONS (approximate)
A
B WITHOUT
GATE
VALVES
CD
E OS&Y
GATE VALVE
OPEN
E OS&Y
GATE
VALVE
CLOSED
E NRS
GATE
VALVE